Measurements between C-Channels/L-Channels

Hello, I’ve had a dilemma concerning the dimensional aspects to fulfill my role in the Make It Real CAD Engineering Challenge. For this challenge, I need to have the measurements between the bottom hole and the middle hole, along with the measurements between the bottom hole and the next one over that is in the bottom sector. I know that’s confusing, so simply - is there a URL/PDF of some sort in which there are measurements and covers dimensional aspects? If not, do you have any specific measurements of your own? Thanks.

The centre distance from hole to hole in ALL vex parts is 0.5 inches. The width of the holes are 0.182 inches